8th gr Multiple Choice Test

A push or a pull

Opposite sides exerting same amount of force, no movement or change of position.

2 sides are exerting force and 1 side exerts more than the other side. The force will cause motion in the direction the greater force is being applied.

The difference in forces.

An object in motion or rest will stay in motion or rest unless acted on by an unbalanced force; inertia.

Acceleration is produced when a force acts on a mass. The greater the mass, the greater the force needed.

For every action there is an equal and opposite reaction.

Change in speed or direction

Happens when a force moves an object over a distance.

A change is position over time.

The objects speed and its direction of motion; positive if speeding up, negative if slowing down.

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